__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
___ __ __ _ ___
/ | /_\ /
\___ __|__ / \ \___
__________________________________________________________
INFORMATION BULLETIN
Red Hat Xpdf Packages Vulnerability
[RHSA-2003:037-09]
February 6, 2003 19:00 GMT Number N-040
______________________________________________________________________________
PROBLEM: A integer overflow vulnerability has been identified in the
pdftops filter. Since the code for pdftops is taken from the
Xpdf project, all versions of Xpdf including 2.01 are
vulnerable.
PLATFORM: Red Hat Linux 6.2
Red Hat Linux 7.0
Red Hat Linux 7.1
Red Hat Linux 7.2
Red Hat Linux 7.3
Red Hat Linux 8.0
DAMAGE: A maliciously-crafted pdf document could run arbitrary code.
SOLUTION: Apply correct upgrade, reference list in the advisory
______________________________________________________________________________
VULNERABILITY The risk is HIGH. If exploited, the attacker could have the
ASSESSMENT: same access privileges as the user who viewed the file with
Xpdf.
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/n-040.shtml
ORIGINAL BULLETIN: https://rhn.redhat.com/errata/RHSA-2003-037.html
______________________________________________________________________________
[***** Start RHSA-2003:037-09 *****]
Updated Xpdf packages fix security vulnerability
Advisory: RHSA-2003:037-09
Last updated on: 2003-02-06
Affected Products: Red Hat Linux 6.2
Red Hat Linux 7.0
Red Hat Linux 7.1
Red Hat Linux 7.2
Red Hat Linux 7.3
Red Hat Linux 8.0
CVEs (cve.mitre.org): CAN-2002-1384
Security Advisory
Details:
Updated Xpdf packages are now available that fix a vulnerability in which a
maliciously-crafted pdf document could run arbitrary code.
Xpdf is a viewer for Portable Document Format (PDF) files.
During an audit of CUPS, a printing system, Zen Parsec found an integer
overflow vulnerability in the pdftops filter. Since the code for pdftops
is taken from the Xpdf project, all versions of Xpdf including 2.01 are
also vulnerable to this issue. An attacker could create a PDF file that
could execute arbitrary code. This could would have the same access
privileges as the user who viewed the file with Xpdf.
All users of Xpdf are advised to upgrade to these erratum packages. For
Red Hat Linux 8.0 we have included new packages based on Xpdf 1.01 with a
patch to correct this issue. For Red Hat Linux 7.0, 7.1, 7.2, and 7.3 we
have upgraded Xpdf to version 1.00 with a patch to correct this issue. For
Red Hat Linux 6.2 we have upgraded Xpdf to version 0.92 with a patch to
correct this issue.
Updated packages:
Red Hat Linux 6.2
--------------------------------------------------------------------------------
SRPMS:
xpdf-0.92-1.62.0.src.rpm
[ via FTP ] [ via HTTP ] 14f5a760b10a2022fe11b13a608679e4
i386:
xpdf-0.92-1.62.0.i386.rpm
[ via FTP ] [ via HTTP ] 84273042eac769bca8e0ae41e40cbb51
Red Hat Linux 7.0
--------------------------------------------------------------------------------
SRPMS:
xpdf-0.92-2.70.0.src.rpm
[ via FTP ] [ via HTTP ] 2ec914d67d16b66eb4777793c4927d2b
i386:
xpdf-0.92-2.70.0.i386.rpm
[ via FTP ] [ via HTTP ] e9f8f9b571951d832dcfe6310c222600
Red Hat Linux 7.1
--------------------------------------------------------------------------------
SRPMS:
xpdf-0.92-4.71.0.src.rpm
[ via FTP ] [ via HTTP ] 777407e0f43e7586f4ef22681eb5311b
i386:
xpdf-0.92-4.71.0.i386.rpm
[ via FTP ] [ via HTTP ] 69f703be285030506d5775c7e258353e
Red Hat Linux 7.2
--------------------------------------------------------------------------------
SRPMS:
xpdf-0.92-8.src.rpm
[ via FTP ] [ via HTTP ] 6aef839487e9ef365c8a1e083cdb8d40
i386:
xpdf-0.92-8.i386.rpm
[ via FTP ] [ via HTTP ] a5b8632b5e3fdae729fd138c79511f37
ia64:
xpdf-0.92-8.ia64.rpm
[ via FTP ] [ via HTTP ] 9833d7aaa358bf91daac2927d85ecca4
Red Hat Linux 7.3
--------------------------------------------------------------------------------
SRPMS:
xpdf-1.00-5.src.rpm
[ via FTP ] [ via HTTP ] d3f8e5d7bbfe3c10c924b8e8e2c855e2
i386:
xpdf-1.00-5.i386.rpm
[ via FTP ] [ via HTTP ] 970dcce631dd221352e4079de6fc8cc8
xpdf-chinese-simplified-1.00-5.i386.rpm
[ via FTP ] [ via HTTP ] 1281db16a674bbba70a40f22b8da44c1
xpdf-chinese-traditional-1.00-5.i386.rpm
[ via FTP ] [ via HTTP ] f9ad4618251a7aaabc62767dda269177
xpdf-japanese-1.00-5.i386.rpm
[ via FTP ] [ via HTTP ] c796d0feb9f67344104393c82c4c707c
xpdf-korean-1.00-5.i386.rpm
[ via FTP ] [ via HTTP ] 8313eca768d1741372b18a304400bec9
Red Hat Linux 8.0
--------------------------------------------------------------------------------
SRPMS:
xpdf-1.01-10.src.rpm
[ via FTP ] [ via HTTP ] d9e8a55e8fc1a1c2accf738372f541f1
i386:
xpdf-1.01-10.i386.rpm
[ via FTP ] [ via HTTP ] 5ff0fab12ef736f60e9d9608a4c17d59
xpdf-chinese-simplified-1.01-10.i386.rpm
[ via FTP ] [ via HTTP ] b175f4484b7b652164b4065b9c04f700
xpdf-chinese-traditional-1.01-10.i386.rpm
[ via FTP ] [ via HTTP ] b79bb5155ef492835453dd0eb07af345
xpdf-japanese-1.01-10.i386.rpm
[ via FTP ] [ via HTTP ] 15058d3a0a53536f6300d4e5c52c00b1
xpdf-korean-1.01-10.i386.rpm
[ via FTP ] [ via HTTP ] 028755012a882c6ed4024b7b4c601911
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.
Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:
up2date
This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.
References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1384
--------------------------------------------------------------------------------
The listed packages are GPG signed by Red Hat, Inc. for security. Our key is available
at:
http://www.redhat.com/solutions/security/news/publickey.html#key
You can verify each package and see who signed it with the following command:
rpm --checksig -v filename
If you only wish to verify that each package has not been corrupted or tampered with,
examine only the md5sum with the following command:
md5sum filename
Note that you need RPM >= 3.0 to check GnuPG keys.
The Red Hat security contact is security@redhat.com. More contact details at
http://www.redhat.com/solutions/security/news/contact.html
[***** End RHSA-2003:037-09 *****]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Red Hat for the
information contained in this bulletin.
_______________________________________________________________________________
CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.
CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
Voice: +1 925-422-8193 (7x24)
FAX: +1 925-423-8002
STU-III: +1 925-423-2604
E-mail: ciac@ciac.org
Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.
World Wide Web: http://www.ciac.org/
Anonymous FTP: ftp.ciac.org
PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins. If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained via WWW at http://www.first.org/.
This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately
owned rights. Reference herein to any specific commercial products,
process, or service by trade name, trademark, manufacturer, or
otherwise, does not necessarily constitute or imply its endorsement,
recommendation or favoring by the United States Government or the
University of California. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or the University of California, and shall not be used for
advertising or product endorsement purposes.
LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC)
N-030: HP: Sendmail Restricted Shell (smrsh) Vulnerability
N-031: Buffer Overflows in ISC DHCPD Minires Library
N-032: Double-Free Bug in Concurrent Versions System (CVS) Server
N-033: Unchecked Buffer in Locator Service Vulnerability
N-034: Cumulative Patch for Microsoft Content Management Server
N-035: Microsoft V1 Exchange Server Security Certificates Vulnerability
N-036: Updated kerberos packages fix vulnerability in ftp client
N-037: Multiple Vulnerabilities in Old Releases of MIT Kerberos
N-038: Microsoft Cumulative Patch for Internet Explorer
N-039: Microsoft Unchecked Buffer in Windows Redirector Vulnerability